Turnbutton fastener



G. S. WEIMER.

TURNBUTTON FASTENER- APPLICATION FILED Aue.11., 1921.

Patented Apr. 11, 1922.

-U ITED STA SJ GEORGE s. wen/inner Aueusrral, KENTUCKY.

T RNBUT'roN .rAsT Nna.

Application filed August 11, 19.21. Serialllo. 491,385;

I ing is a specification.

. base comprises a shank a of an oval cross This invention relates to a.fastener or turn button of the kind commonly used for fastening thecurtains of vehicles. The invention consists in various novel featuresof construction hereinafter described.

An object oflmy invention is to provide a device of the class describedwherein the yieldlng resistance employed in this sort of a device ismoreadequately protected than are the corresponding elements indevices knownto me up to this time.

Another object of my invention is to provide means to be employed with adevice of this kind adapted to positively secure the parts thereof inpositions for the releasing therefrom or mounting thereon of a curtain.

These and other objects are attained by the means described herein anddisclosed in the accompanying drawings, in which Fig. 1 is a plan Viewof a fastener embodying my invention.

Fig. 2 is an enlarged sectional view of'a fastener taken on line 2-2 ofFig. 1.

Fig. 3 is an enlarged sectional View on line 33 of Fig. 2. e 1

Fig. 4: is an enlarged plan view of a base forming a detail of minvention.

Fig. 5 is a sectiona view on line 5--5 of Fig. 1

Fig. 6 is a perspective view of a pin forlning a detail of my invention.

The fastener A of my invention is mount ed on a standard C in anysuitable manner and consists of a base at and a cap a". The

section supportingthe topai which top has a central perforation a, onthe opposite sides of which perforation and extending in the directionof the longitudinal center line or major axis of the top a, are formedthe upwardly projecting ridges a and a Upon so the transverse center orminor axis extending'through the slot a" and, spaced on op-- 1 lraisedupon the top. A cap on", having a central slot a", has a depressedportion a? formed aboutsaidslot at. and. has a shank a of ,ovalcross-section,supporting'the upper wall of said cap andwhich upper wallcarries the saidjdepression. The lower end of the side or shank ofthe:cap is adapted to lie immediately over the top a of the base. The shanksof the base and of the cap are both oval in constructionin order tosecure the curtain B by turning the cap after passing same through thegrommet b on the curtain. Cotter pin a having a head a at one end andhavin its other end slitted whereby tw lugs (0 and a are formed,,extendsthrough the 1 slots inthe cap and in'the base'. The lugs are turned uponthemselves so as to preclude sep'ara-' -Specificatioi1 of LettersPatent. P tented Apr-.11, 1922. I

tion of the'ba's e and cap. An oval plate a? i is 'recipro'cally mountedupon the pin" intermediate the tops of the base and cap, and has formedin it a pair of upwardly pro jecting ridges a, whereby there is formedin its lower surface the grooves or notches a adapted to accommodate theridges a and a Upwardly struck knobs a are adapted to accommodatethepins (0* and a formed upon the plate, whereby'notches are formed in thelower surface of the plate A spring a is mounted upon the pin a and itsopposite endsabut the cap and the plate.

The head a of the pin a forms a closure.

precluding theentry of water into the cap. The spring a yieldinglypositionsv the cap upon the base. "The plate a provides a.

closure adapted to protect the spring a.

The plate, in combination with the spring and the lugs formed on thebase, serve to lockthe base andcap in either ofjtwo positions, one wherethe cap extends trans:

versely of the base and the grommet is precluded fromleavingthe base,and the other where the walls of the shanks extend 1. In a fastener ofthe class'describedthecombination of a base having a perforationtherethrough, upwardly struck lugs on the base and disposed on oppositesides of the perforation, a cap having an oval shape and having acentral perforation therethrough, a.

pin having a head formed at one end and having a slit through the otherend whereby lugs are formed at the second end thereof,

the pin extending through the-perforations :in the base and cap andhaving the head in engagement with the cap and having the lugs thereonturned upon themselves so as to engage the base, whereby separation ofthe base and cap are precluded, a plate mounted on the pin havingupwardly extending grooves in itsundersurface adapted to accommodate thelugs on the base, and a spring mounted on the pin abutting the plate andthe cap and retaining the plate in yielding engagement upon the base.

2. In a fastener of the class described the combination of a base havinga slotted top, a cap having a shank and an oval top, the top of the caphaving a central slot and a depression formed about said slot, the slotbeing in alignment with the slot in the base,

a cotter pin extending through the slots revolubly mounting the cap onthe base, and having at one end ahead adapted to seat in the depressionin the cap and being slit at its other end'whereby lugs are formed onthe cotter pin, a plate mounted revolubly on the cotter pin engaging thecap and adapted to revolve therewith, a spring contained Within the capabutting the plate and the cap, the plate and base having cooperationwith the spring, to yieldingly resist relative movement of the base andplate, the

lugs on the cotter pin being bent upon themselves'and clamped upon theinside of the top of the cap. I

3. In a fastener of the class described the combination of a base, aplate and a cap of oval shape having aligned perforations, the basehaving ridges formed on its longer diameter, said ridges being spaced onopposite sides of the pertoration'in the base, at a distance in excessof the shorter diameter of the cap, pins on the base disposed on theshorter diameter of the base, the plate having notches on its longer andshorter diameter, the longer groove being adapted to accommodate theridge and pins, and the shorter groove being adapted to accommodate thepins, and means extending through the perforations adapted to precludeseparation of the base, plate and cap.

In testimony whereof, I have hereunto subscribed my name this 6th day ofAugust, 1921.

GEORGE s. WEIMER.

